x=True
print(x)
print(type(x))
print(x+10)
print(False+10)
print(bool(25))
print(bool(5))
print(bool(0),bool(0.0))
print(bool())
print(bool('杭州'))
print(bool(False))
print(bool(None))
'''输出结果：
True
<class 'bool'>
11
10
True
True
False False
False
True
False
False
'''